Precision CNC Milling
Services in China
3, 4 & 5-axis machining to ±0.005mm. ISO 9001:2015 & AS9100D certified. 70+ materials. Prototypes in 3–5 days. Trusted by aerospace, medical & automotive OEMs worldwide since 2010.
China's Most Trusted CNC Milling Company for Global OEMs
Founded in 2010, MW+ Precision Manufacturing Co., Ltd. is a premier CNC milling company in Shenzhen, China. Our 12,000 m² facility operates 40+ German- and Swiss-sourced multi-axis machining centres under real-time Statistical Process Control — delivering consistent tolerances from first article through mass production.
Our engineering team of 60+ specialised machinists and quality engineers has accumulated deep expertise in 5-axis CNC milling of exotic alloys, medical implant components, aerospace structures, and complex mould geometries. Every project is managed by a dedicated account engineer — giving global buyers direct access to technical expertise, not just production capacity.
Partnering with MW+ delivers 20–40% cost advantages versus equivalent Western suppliers, while maintaining full certification compliance — ISO 9001:2015, AS9100D, IATF 16949, and ITAR registration — that global OEM procurement teams require.
"After 14 years machining over 2 million precision components, one truth holds: tolerance without traceability is meaningless. Every part we ship carries full dimensional records, material mill certificates, and a named engineer who signed off on it."
— Engineering Director, MW+ Precision Manufacturing · 18 years CNC machining experienceFrom CAD File to Certified Part — 7 Steps
A transparent, engineering-led workflow designed for professional procurement teams. Average total cycle: 3–12 working days depending on complexity and volume.
3-Axis, 4-Axis & 5-Axis CNC Milling Services
Our machining fleet covers the full axis spectrum — from high-throughput 3-axis production to simultaneous 5-axis for the most complex aerospace and medical geometries.
3-Axis CNC Milling
Cost-effective solution for prismatic parts, flat surfaces, pockets, slots, and simple contours. The workhorse of volume production — delivering consistent ±0.01mm tolerances on brackets, enclosures, plates, and structural components.
4-Axis CNC Milling
Adds a rotational A-axis to 3-axis capability, enabling multi-face machining in a single clamping. Reduces setups by up to 60%, eliminates re-referencing errors, and improves inter-feature positional accuracy for complex housings, shafts, and pump bodies.
5-Axis CNC Milling
Full simultaneous 5-axis movement (X, Y, Z plus A and B rotation) machines complex compound curves, undercuts, and near-complete parts in one setup. Essential for aerospace turbine blades, orthopaedic implants, complex mould cavities, and any geometry requiring the tightest achievable tolerances.
Machining Specifications & Tolerance Standards
Comprehensive technical data for procurement engineers, quality managers, and design teams evaluating CNC milling supplier capability.
Axis Capability Comparison
| Parameter | 3-Axis | 4-Axis | 5-Axis |
|---|---|---|---|
| Positional Tolerance | ±0.01 mm | ±0.008 mm | ±0.005 mm |
| Surface Finish Ra | 1.6 µm | 0.8 µm | 0.2 µm |
| Complex Geometry | Basic / Prismatic | Multi-face | Full compound |
| Setups Required | Multiple | Reduced (~40%) | Minimal |
| Spindle Speed | 12,000 RPM | 15,000 RPM | 20,000 RPM |
| Max Bed Size (X) | 1,500 mm | 1,200 mm | 1,000 mm |
| Typical Lead Time | 5–8 days | 6–9 days | 7–12 days |
| Best For | Flat, prismatic | Housings, shafts | Aerospace, implants |
Standard GD&T Callouts We Machine To
ISO 2768 Tolerance Reference Table
| Nominal Dimension | Metals ISO 2768-f | Plastics ISO 2768-m | Custom High-Prec. |
|---|---|---|---|
| 0.5 – 3 mm | ±0.05 | ±0.10 | ±0.010 |
| >3 – 6 mm | ±0.05 | ±0.10 | ±0.010 |
| >6 – 30 mm | ±0.10 | ±0.20 | ±0.015 |
| >30 – 120 mm | ±0.15 | ±0.30 | ±0.020 |
| >120 – 400 mm | ±0.20 | ±0.50 | ±0.025 |
| >400 – 1000 mm | ±0.40 | ±0.80 | ±0.050 |
| >1000 – 2000 mm | ±0.50 | ±1.20 | ±0.100 |
| Minimum achievable: ±0.0025 mm on critical dimensions via dedicated 5-axis setup. Custom tolerance agreements available for aerospace and medical applications. | |||
Standard Measurement Equipment
70+ Engineered Materials — Full Mill Certificate Traceability
From standard aluminium alloys to high-temperature superalloys and medical-grade polymers. Every batch traced to mill certificates and RoHS declarations.
Aluminium Alloys
Lightweight, excellent machinability, and corrosion resistance. Primary material for aerospace structures, EV battery housings, heat sinks, and consumer electronics enclosures.
Stainless & Tool Steels
High corrosion resistance, strength, and wear resistance. Tool steels hardened to 62 HRC for mould inserts, cutting tools, and high-wear components.
Titanium & Superalloys
Aerospace structural, high-temperature, and chemically aggressive environments. Medical-grade titanium for implants with Ra <0.4 µm and full biocompatibility documentation.
Engineering Plastics
Lightweight, chemically resistant, electrically insulating. PEEK for implantable devices; PTFE for chemical equipment; POM for precision gears; Ultem PEI for high-heat applications.
Copper, Brass & Exotic Metals
Exceptional electrical conductivity and controlled thermal expansion. Kovar and Invar 36 for precision optical/electronic assemblies requiring near-zero CTE matching.
Magnesium & Zinc Alloys
Ultra-lightweight structural materials with inherent EMI shielding. Ideal for aerospace cabin interiors, drone airframes, and portable device chassis where weight is critical.
Premium Surface Finishing Options
In-house and qualified-partner finishing services — all specified, measured, and reported under MW+ quality oversight.
As-Machined
Standard milled finish with tool paths removed. Cost-effective for internal or non-cosmetic components. Available on all materials.
Ra 1.6–3.2 µm · No additional lead timeBead Blasting
Uniform matte texture that eliminates tool marks and micro-burrs. Excellent pre-treatment before anodising or powder coating.
Ra 1.0–2.0 µm · Al, SS, Ti compatibleAnodising (Type II / III)
Type II decorative anodise in custom RAL colours. Type III hard-anodise up to 50 µm depth increases surface hardness to 60+ HRC equivalent.
MIL-A-8625 · Hardness to 70 HRC surfacePowder Coating
Durable thermoplastic finish in RAL or NCS colours. Excellent UV resistance, impact durability, and chemical resistance for outdoor exposure.
60–120 µm · ASTM D3359 adhesion testElectroplating (Zn/Ni/Cr)
Zinc for corrosion protection, nickel for hardness and solderability, chrome for decorative durability. Plating thickness controlled per specification.
5–25 µm · RoHS-compliant optionsPolishing / Mirror Finish
Hand and machine polished to optical-grade reflective surfaces. Required for medical instruments, injection mould cavities, and optical mounting components.
Ra <0.2 µm · N4 grade or finerPassivation & Electropolishing
Chemical passivation removes free iron from stainless steel; electropolishing micro-deburrs and smooths surfaces for pharmaceutical and biotech equipment.
ASTM A967 · ASTM B912 compliantLaser Marking & Brushing
Permanent logos, serial codes, 2D Data Matrix marks, and UDI codes. Directional satin brush finish for premium medical or consumer aesthetics.
UDI compliant · Full traceabilityCNC Milling Services: Prototype to Mass Production
Flexible service tiers adapted to project stage, complexity, and volume — with identical quality standards from the first prototype to the ten-thousandth production part.
Rapid Prototyping
Accelerate design iteration with fast-turn CNC prototypes. Free DFM feedback and material alternatives advisory included with every prototype order.
Learn More →Low-Volume Production
Bridge production for market testing, clinical device trials, or seasonal demand spikes. Fixture costs amortised across the run volume.
High-Volume Production
Automated production cells, SPC-monitored lines, and kanban scheduling for sustained supply. PPAP and process audit capability available.
High-Speed Milling
Exceptional surface quality, reduced cycle time, and minimal thermal distortion for thin-wall components and large-area precision surfaces.
3-Axis Milling
High-throughput prismatic and flat-surface machining. Optimal for structural brackets, covers, base plates, and volume production of standard geometries.
Explore →4-Axis Milling
Rotational indexing reduces fixturing by 60%. Superior inter-feature positional accuracy for complex housings, pump bodies, and multi-face components.
Explore →5-Axis Milling
Simultaneous 5-axis for compound curves, turbine blades, implant surfaces, and undercuts impossible on 3/4-axis machines. Tightest tolerances available.
Explore →Custom CNC Solutions
Non-standard dimensions, exotic or ultra-hard materials, multi-process assembly work. Engineers collaborate from design review through validated delivery.
Zero-Compromise Quality Control
Every part traceable. Every dimension verified. Full AS9102 FAI, PPAP, and material mill certificate packages available for aerospace, medical, and automotive clients.
Certifications & Standards
CNC Milling for Mission-Critical Applications
MW+ serves demanding sectors where dimensional accuracy, material traceability, and supply chain reliability are non-negotiable. Each industry page includes sector-specific compliance documentation.
Aerospace & Defence
Structural brackets, turbine components, avionics housings, flight control actuators, and airframe fittings. Inconel, titanium, and beryllium copper routinely machined.
Automotive & EV
Battery module housings, motor mounts, transmission end-caps, thermal management cold plates, and lightweight EV structural parts with PPAP documentation.
Medical & Dental
Orthopaedic implants, surgical instruments, diagnostic device housings, dental prosthetics. Biocompatible materials and UDI-compliant laser marking.
Robotics & Automation
Precision arm joints, harmonic drive housings, end effectors, sensor mounting brackets, and linear slide bodies for collaborative and industrial robots.
Electronics & Semiconductor
Heat sinks, wafer handling chuck components, test socket bodies, EMI/RFI shielding enclosures, precision connector housings, and contact pins.
Energy & Renewables
Solar tracker actuator parts, wind turbine drivetrain components, subsea oil & gas exploration hardware, and nuclear-grade stainless assemblies.
Industrial Machinery
Hydraulic manifolds, gearbox housings, compressor impellers, pump casings, and jig/fixture tooling for OEM machinery manufacturers worldwide.
Tooling & Mould Making
Injection mould cavities and cores, die-cast tooling, progressive stamping dies, hot-runner systems, and prototype bridge tooling with hard milling to 62 HRC.
Core CNC Manufacturing Solutions
Specialist product lines — each optimised for specific engineering requirements, supply chain needs, and certification frameworks.
CNC Precision Parts
High-precision machined components to ±0.005mm serving aerospace, medical, automotive, and electronics industries. Full QMS compliance with material traceability on every order, from single prototype to mass production.
- ISO 9001:2015 & AS9100D certified QMS
- 3, 4 & 5-axis simultaneous CNC machining
- Global shipping: USA, Europe, Asia, Australia
- 70+ materials with full mill cert traceability
- CMM reports, FAI & CoC on request
Machine Parts
Industrial-grade CNC machined components for heavy machinery, gearboxes, hydraulic systems, and sustained high-volume production. SPC monitoring, PPAP capability, and kanban scheduling available.
- Gears, shafts, housings, valves & manifolds
- 500–10,000+ unit production capability
- Heat treatment & surface hardening in-house
- Full QA reports & material mill certificates
- SPC monitoring & Cp/Cpk process capability
CNC Machined Pins & Connectors
Precision connector pins, turned pins, electrical contact pins, and terminal pins machined from our Shenzhen facility. Gold, silver, and nickel plating available. Prototype to volume production with no MOQ.
- 2–5 day express service available
- No minimum order quantity — from 1 piece
- Free DFM analysis with every enquiry
- Plating: gold, silver, nickel, tin options
- RoHS & REACH compliant materials
Trusted by Global Engineering Teams
Verified feedback from procurement managers, mechanical engineers, and R&D directors who have worked with MW+ Precision on production programs.
"MW+ delivered 5,000+ complex aluminium enclosures via 5-axis milling — 3 days ahead of schedule and every piece cleared CMM inspection on first article. Their DFM feedback alone saved us 15% on tooling costs before we cut a single chip."
"We required tight-tolerance titanium components for an active implant program. MW+ held ±0.005mm across the entire batch and provided ISO 13485-aligned documentation with full material traceability. Communication and engineering support were outstanding throughout."
"As a Tier 1 automotive supplier we depend on MW+ for high-volume CNC milled drivetrain parts. Their SPC reporting and Cp/Cpk data gives our quality team the process confidence we need for IATF 16949 compliance. Lead times are 30% better than our previous China source."
Standard CNC milling tolerance at MW+ Precision is ±0.01mm on 3-axis work. High-precision 5-axis machining routinely holds ±0.005mm, and dedicated aerospace protocols achieve ±0.0025mm on critical dimensions. All tolerances are verified with Zeiss and Renishaw CMM equipment and documented in FAIR or PDF dimensional reports.
MW+ accepts STEP (.stp/.step), IGES (.iges/.igs), Parasolid (.x_t/.x_b), SOLIDWORKS (.sldprt), and 2D drawings in DXF, DWG, or PDF. For accurate quotes, include a 2D drawing with GD&T callouts, material specification, surface finish requirements, and all critical dimensions annotated.
3-axis CNC milling moves the cutting tool in X, Y, and Z — best for flat and prismatic parts. 4-axis adds a rotary A-axis for multi-face machining in fewer setups, improving positional accuracy between features. 5-axis simultaneous adds A and B rotation alongside X/Y/Z, enabling compound curves, undercuts, turbine blade profiles, and complex contours — achieving tightest inter-feature tolerances and best surface quality.
There is no minimum order quantity at MW+ Precision. Orders are accepted from a single prototype piece through to 10,000+ unit production runs. Set-up costs for very low quantities are quoted transparently and can be amortised over subsequent repeat orders.
Standard CNC milling prototype lead time is 3–5 working days from purchase order confirmation. Expedited 24–48 hour service is available for urgent R&D requirements, subject to machine capacity and material availability. Contact our engineering team for scheduling confirmation on complex geometries.
MW+ provides: First Article Inspection (FAI) reports per AS9102, CMM dimensional reports with full measurement data, material mill certificates with heat number traceability, Certificate of Conformance (CoC), RoHS and REACH declarations, surface roughness reports (Ra/Rz), and PPAP documentation for automotive clients. Custom documentation packages are available on request.
Yes. MW+ has extensive experience machining difficult-to-cut materials including Inconel 625 and 718, Hastelloy C276, titanium Ti-6Al-4V Grade 5, Waspaloy, beryllium copper, tungsten, PEEK, Ultem PEI, and PTFE. Tooling inventory and cutting parameters are optimised per alloy family. All exotic materials are supplied with full mill certificates and material composition reports.
MW+ ships globally under EXW, FOB Shenzhen, CIF, and DDP Incoterms. Typical transit times are 5–8 days to the USA, 5–10 days to Europe, and 3–5 days to Southeast Asia. Dedicated account managers serve USA, European, and Australian clients for logistics coordination and customs documentation.
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Get In Touch With Our CNC Milling Experts
Dedicated account managers for USA, Europe, and Asia-Pacific. Engineering response within 4 business hours.